Improper access control in Cisco IMC Supervisor, Cisco UCS Director, and Cisco UCS Director Express for Big Data

1) Improper access control

EUVDB-ID: #VU27582

Risk: Low

CVSSv4.0: 1.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2020-3329

CWE-ID: CWE-284 - Improper Access Control

Exploit availability: No

Description

The vulnerability allows a remote user to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to incorrect allocation of the enable/disable action button under the role-based access control code. A remote user with read-only permission can update the roles of other users to disable them, including administrative users.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Cisco Integrated Management Controller Supervisor: - - 1.1.0.0

Cisco UCS Director: - - 5.4.0.0

Cisco UCS Director Express for Big Data: - - 2.0.0.0

CPE2.3

• cpe:2.3:a:cisco_systems:cisco_integrated_management_controller_supervisor:*:*:*:*:*:*:*:*
• cpe:2.3:a:cisco_systems:cisco_integrated_management_controller_supervisor:1.1.0.0:*:*:*:*:*:*:*
• cpe:2.3:a:cisco_systems:cisco_ucs_director:*:*:*:*:*:*:*:*
• cpe:2.3:a:cisco_systems:cisco_ucs_director:5.4.0.0:*:*:*:*:*:*:*
• cpe:2.3:a:cisco_systems:cisco_ucs_director_express_for_big_data:*:*:*:*:*:*:*:*
• cpe:2.3:a:cisco_systems:cisco_ucs_director_express_for_big_data:2.0.0.0:*:*:*:*:*:*:*

External links

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ucsd-Ar6BAguz

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.